<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .bar {
            margin: 50px auto;
            width: 600px;
            height: 40px;
            display: flex;
            justify-content: space-between;
        }

        .bar:hover a {
            filter: blur(3px);
        }

        .bar a {
            position: relative;
            width: 100px;
            line-height: 40px;
            text-align: center;
            color: skyblue;
            text-decoration: none;
            text-transform: uppercase;
            transition: filter .3s ease;
            overflow: hidden;
        }

        .bar a:before {
            content: 'Touch';
            position: absolute;
            width: 100px;
            height: 0;
            left: 0;
            background-color: skyblue;
            transition: .1s ease;
            overflow: hidden;
        }

        .bar a:hover {
            filter: blur(0);
        }

        .bar a:hover:before {
            height: 40px;
            font-size: 20px;
            font-weight: 600;
            color: white;
        }
    </style>
</head>
<body>
<div class="bar">
    <a href="#">Touch</a>
    <a href="#">Touch</a>
    <a href="#">Touch</a>
    <a href="#">Touch</a>
    <a href="#">Touch</a>
</div>
</body>
</html>